Re: A thank you
I spent several years doing pre sales and post ales consultancy on system performance.
My services were often provided free as either we resolved a performance issue and had a happy customer, or they has heavily utilized kit, if and having tuned it still needed more capacity and this would result in > £1M sales. The company knew that resolving an issue just deferred the next upgrade cycle by 6-12 months but the fact that customers knew they were getting a real technical consultant performing the work and I wasn't afraid to fix a problem rather than punt a sale at them stood us in good stead.
Some of my simplest assignments were actually reviewing the in-house teams tuning parameters confirming that they had already optimized the O/S and hard ware and then writing the report recommending the next upgrade. Often the poor on site guys had been begging for this for a couple of years but couldn't get the budget for the upgrade until perfromance was on the floor.